I've heard nothing about anyone "backing away" from them coming back to testify specifically about what Hutchinson has said.Engle and Ornato have both testified under oath previously and are both said they are willing to come back and do it again to address these claims. Cheney is already backing away from the offer and Kinzger, rather than bring them in, is launching attacks on twitter against them. You will never hear any testimony from them and the ENTIRE reason will be because the committee is blocking it.
Despicable doesn't begin to describe this corrupt committee.
What matters is Ornato's recollection of what he told Cassidy...because her testimony was about his account.